diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Frame-onStep-resumption-02.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Frame-onStep-resumption-02.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+// If frame.onStep returns {throw:}, an exception is thrown in the debuggee.
+
+load(libdir + "asserts.js");
+
+var g = newGlobal();
+g.eval("function h() { debugger; }\n" +
+       "function f() {\n" +
+       "    h();\n" +
+       "    return 'fail';\n" +
+       "}\n");
+
+var dbg = Debugger(g);
+dbg.onDebuggerStatement = function (frame) {
+    frame.older.onStep = function () { return {throw: "pass"}; };
+};
+
+assertThrowsValue(g.f, "pass");